DNR Prototype: With flatbuffers

extensions/common/api/declarative_net_request/rules_indexer_util.h

+// Copyright 2017 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include <string>
+#include <utility>
+
+#include "extensions/common/api/declarative_net_request/constants.h"
+
+#ifndef EXTENSIONS_COMMON_API_DECLARATIVE_NET_REQUEST_RULES_INDEXER_UTIL_H_
+#define EXTENSIONS_COMMON_API_DECLARATIVE_NET_REQUEST_RULES_INDEXER_UTIL_H_
+
+namespace base {
+class FilePath;
+}
+
+namespace extensions {
+namespace declarative_net_request {
+
+// This must be called on a thread where file IO is allowed.
+bool IndexAndPersistRuleset(const base::FilePath& json_rules_path,
+                            const base::FilePath& indexed_ruleset_path,
+                            std::string* error);
+
+}  // namespace declarative_net_request
+}  // namespace extensions
+
+#endif  // EXTENSIONS_COMMON_API_DECLARATIVE_NET_REQUEST_RULES_INDEXER_UTIL_H_